Expression of leptin and its receptor in female breast cancer in relation with selected apoptotic markers.

Leptin and its receptor may be engaged in pathogenesis of breast cancer among various human tumors. In vitro investigations showed leptin-mediated escalation of estrogen synthesis and boosted activity of estrogen receptor ERalpha. Furthermore, leptin induced growth of malignant cells, counteracted apoptosis and stimulated cell migration as well as overexpression of angiogenic factors and degrading enzymes that split network of intercellular matrix. On the other side, leptin has been reported to favor apoptosis, lately. Proapoptotic effect of leptin action was revealed in interstitial cells of bone marrow and adipocytes. Our past reports provide evidences for overexpression of leptin and its receptor in breast cancer in comparison with benign mammary lesions. In current study we aimed at assessment of eventual relationships between leptin, leptin receptor and selected protein regulators of apoptosis in breast cancer. We applied immunohistochemistry for leptin, leptin receptor, anti-apoptotic Bcl-2 and Bcl-xL as well as pro-apoptotic Bak and Bax expression assessment in 106 cases of human breast cancers. The immunoreaction was graded and statistically evaluated. Expression of leptin was positively correlated with Bcl-xL, Bak and Bax (

Factors affecting puberty gingivitis in Polish girls with adolescent idiopathic scoliosis

Objectives: Age at menarche and hormonal disturbances have been linked to the occurrence and severity of adolescentidiopathic scoliosis (AIS). Concomitantly, an increase in the production of sex hormones during puberty may result in steroidhormones-related gingivitis. Thus, the study aimed to assess the prevalence and factors affecting puberty gingivitis,including menarcheal status, in female patients with AIS and control subjects.Material and methods: The study group was comprised of 59 girls aged 12–16 years with AIS and 50 healthy controls. Dentalexamination included the assessment of oral hygiene, gingivitis, and dental caries intensity. Data were statistically analyzedwith a significance taken as p < 0.05.Results: There wasn’t any statistically significant difference in the age at menarche and menarcheal status of both groups. Duringregression analysis, three predictors significantly affected gingival status of girls: oral hygiene, orthopedic condition,and laterality of the curve. Scoliosis and left convex of the curve significantly increased the index of gingival inflammation.Conclusions: The results indicate that gingivitis is frequent among female adolescents with AIS, due to poor oral hygieneand higher susceptibility to inflammation. It emphasizes a need for a development of preventive strategy for scoliotic patients,since incipient periodontal problems in children may turn into irreversible advanced periodontal diseases in adults

The role of visceral therapy, Kegel’s muscle, core stability and diet in pelvic support disorders and urinary incontinence — including sexological aspects and the role of physiotherapy and osteopathy

Proper diet and physical activity are a form of prevention of female genital prolapse disorders. The causal substrate of pelvic floor dysfunction is multifactorial. Fifty percent of women over the age of 50 have pelvic organ prolapse, often accompanied by urinary incontinence. It is a complicated social and medical (urogynecological and sexological) problem. The authors conducted a literature review on the role of visceral therapy, Kegel and core stability exercises and diet in pelvic support disorders and urinary incontinence. The eligible articles provided insights into sexological factors, as well as the role of osteopathy and physiotherapy. These results provide new insights into the relevance of clinical practice. In addition to standard treatment methods used in gynaecology, sexology, physiotherapy and osteopathy (e.g., visceral therapy), Kegel muscle and core stability exercises are becoming increasingly important. The aim of visceral therapy is to restore the mobility of the organs while reducing increased tension and improving blood and lymph circulation. This has the effect of reducing pain sensations, thereby influencing the function of the uterus and ovaries

Advances in the Molecular Pathophysiology, Genetics, and Treatment of Primary Ovarian Insufficiency

Primary ovarian insufficiency (POI) affects similar to 1% of women before 40 years of age. The recent leap in genetic knowledge obtained by next generation sequencing (NGS) together with animal models has further elucidated its molecular pathogenesis, identifying novel genes/pathways. Mutations of > 60 genes emphasize high genetic heterogeneity. Genome-wide association studies have revealed a shared genetic background between POI and reproductive aging. NGS will provide a genetic diagnosis leading to genetic/therapeutic counseling: first, defects in meiosis or DNA repair genes may predispose to tumors; and second, specific gene defects may predict the risk of rapid loss of a persistent ovarian reserve, an important determinant in fertility preservation. Indeed, a recent innovative treatment of POI by in vitro activation of dormant follicles proved to be successful.Peer reviewe

Controlled poly(l-lactide-co-trimethylene carbonate) delivery system of cyclosporine A and rapamycine - the effect of copolymer chain microstructure on drug release rate

International audienceThe effect of poly(l-lactide-co-TMC) chain microstructure (and its changes during degradation) on immunosuppressive drugs' release process was analyzed. Three kinds of poly(l-lactide-co-TMC) (PLATMC) - two semiblock and one random were used to prepare matrices containing cyclosporine A or rapamycine and drug free matrices. All of them degraded slowly enough to provide long term delivery of immunosuppressive agents. Moreover, copolymer chain microstructure determined the effect of drug loading on the degradation process. It was observed that matrices without drug obtained from semiblock copolymer degraded differently than matrices containing cyclosporine A or rapamycine, whereas all kinds of matrices obtained from random PLATMC degraded in similar way. This is the evidence that the only in case of semiblock copolymer factors concerning the presence of drug and the kind of drug influenced degradation process. Based on the obtained results, correlations between copolymer degradation and drug release process are proposed. According to our outcomes, regular drug release process may be obtained from highly randomized copolymers (R ≈ 1) that remain amorphous during degradation process. Determination of this factor may help in development of biodegradable systems, in which drug release rate and profile can be tailored by synthesis of polymer with appropriate chain microstructure

Immunohistochemical study of KiSS1 and KiSS1R expression in human primary breast cancer: Association with breast cancer receptor status, proliferation markers and clinicopathological features

Recent studies have raised doubts about the protective role of KiSS1/KiSS1R in breast malignancy progression. However, the role of the KiSS1/KiSS1R system in primary breast cancer remains largely unknown. The aim of the present study was to characterize the biology and invasiveness potential of primary breast cancer through evaluation of KiSS1/KiSS1R protein expression and cellular localization with regard to lymph node metastasis status, receptor status (ERs, PR and HER-2/neu), and expression of aromatase, MMP-9, Ki-67 and Cyclin D1 in primary invasive breast cancer tissues. We showed increased protein expression of both KiSS1/KiSS1R and MMP-9 in the cancerous tissue compared with noncancerous tissue adjacent to the breast tumour. In the studied group of breast cancer samples, we observed a positive correlation between KiSS1 and MMP-9. We also showed a positive correlation between KiSS1R and aromatase expression in all studied breast cancers. We did not notice any associations between the KiSS1/KiSS1R system and cell cycle regulators. KiSS1/KiSS1R did not correlate either with Cyclin D1 and Ki-67 or with receptor status. However, we showed higher levels of KiSS1R expression in ERα-negative cases than in ERα-positive cases in patients with lymph node metastasis. Present data do not confirm the protective role of KiSS1/KiSS1Rin breast cancer progression, but our results do support the hypothesis that the KiSS1/KiSS1R system is activated even in primary breast cancer and sustained during invasion to local lymph nodes

Expression of leptin and its receptor in female breast cancer in relation with selected apoptotic markers.

Leptin and its receptor may be engaged in pathogenesis of breast cancer among various human tumors. In vitro investigations showed leptin-mediated escalation of estrogen synthesis and boosted activity of estrogen receptor ERalpha. Furthermore, leptin induced growth of malignant cells, counteracted apoptosis and stimulated cell migration as well as overexpression of angiogenic factors and degrading enzymes that split network of intercellular matrix. On the other side, leptin has been reported to favor apoptosis, lately. Proapoptotic effect of leptin action was revealed in interstitial cells of bone marrow and adipocytes. Our past reports provide evidences for overexpression of leptin and its receptor in breast cancer in comparison with benign mammary lesions. In current study we aimed at assessment of eventual relationships between leptin, leptin receptor and selected protein regulators of apoptosis in breast cancer. We applied immunohistochemistry for leptin, leptin receptor, anti-apoptotic Bcl-2 and Bcl-xL as well as pro-apoptotic Bak and Bax expression assessment in 106 cases of human breast cancers. The immunoreaction was graded and statistically evaluated. Expression of leptin was positively correlated with Bcl-xL, Bak and Bax (p<0.001, r=0.614; p<0.001, r=0.518; p<0.001, r=0.511, respectively). Statistical significances were noted between expression of leptin receptor and Bcl-xL or Bax (p=0.011, r=0.210; p<0.001, r=0.313, respectively). No correlation was encountered between leptin and Bcl-2, either leptin receptor and Bcl-2 or leptin receptor and Bak. On the basis of obtained results, leptin system could interfere in balance among expressions of pro- and anti-apoptotic proteins and regulate cell turnover and--by means of it--facilitate breast cancer progression

Novel Poly(L-lactide-co-ε-caprolactone) Matrices Obtained with the Use of Zr[Acac]4 as Nontoxic Initiator for Long-Term Release of Immunosuppressive Drugs

Slowly degradable copolymers of L-lactide and ε-caprolactone can provide long-term delivery and may be interesting as alternative release systems of cyclosporine A (CyA) and rapamycin (sirolimus), in which available dosage forms cause a lot of side effects. The aim of this study was to obtain slowly degradable matrices containing immunosuppressive drug from PLACL initiated by nontoxic Zr[Acac]4. Three kinds of poly(L-lactide-co-ε-caprolactone) (PLACL) matrices with different copolymer chain microstructure were used to compare the release process of cyclosporine A and rapamycine. The influence of copolymer chain microstructure on drug release rate and profile was also analyzed. The determined parameters could be used to tailor drug release by synthesis of demanded polymeric drug carrier. The studied copolymers were characterized at the beginning and during the degradation process of the polymeric matrices by NMR spectroscopy, GPC (gel permeation chromatography), and DSC (differential scanning calorimetry). Different drug release profiles have been observed from each kind of copolymer. The correlation between drug release process and changes of copolymer microstructure during degradation process was noticed. It was determined that different copolymer composition (e.g., lower amount of caprolactone units) does not have to influence the drug release, but even small changes in copolymer randomness affect this process

Visceral therapy in disorders of the female reproductive organs

Dyspareunia is genital pain during sexual intercourse without constriction of the vulva or vagina. This is one of the most significant issues that lies at the border of gynaecology and sexology. Dyspareunia can be caused by endometriosis. Many women can also experience premenstrual syndrome, which can occur as a separate problem. All three of these can result from an imbalance between the female genital organs and their surrounding tissues with other structures of the skeletal or visceral system, with impaired mobility and motility of organs, intra-organ movement, vascular drainage, a pressure gradient between the urogenital and diaphragmatic cylinders, dysfunctions in the area of the broad ligament of the uterus, and fascial bonding. Apart from standard treatment methods used in gynaecology and sexology, physiotherapy (e.g., visceral therapy) is of great value. Visceral therapy aims at restoring intra-organ movement, reducing tension, focusing on the area of the two cylinders of the trunk, and supporting the functioning of the vascular system in the vicinity of the uterus. All these activities reduce pain and substantially change the functioning of the uterus and ovaries