ABSTRACT
@#Among the main reasons for re-emergence of vaccine preventable diseases were missed or incomplete immunization schedule. The supplementary immunization activity (SIA) is an important intervention done to provide complete immunization coverage among those children. Better outcome came along with good knowledge and perception on the program. Thus, this study aims to assess the level of knowledge and perception of the mothers towards SIA program. A cross-sectional study was conducted among mothers with children ≤ 15 years old in Cheras, Kuala Lumpur. Data was collected by interview using the guided questionnaire consists of four sections to assess the socio demographic, socio economic, knowledge and perception regarding SIA. The questionnaire was validated for internal consistency with Cronbach’s alpha 0.461 for knowledge and 0.729 for perception. A total of 105 respondents with the median age of 33 years (IQR: 28-38) with majority of them are Malays (82.9%), Muslim (83.8%), married (97.1%) and (57.1%) with 1- 2 child in the family. Half of them were from low income family (46.7%) and had secondary education level (54.3%) and were housewives (47.6%). One third of the respondents (33%) never heard about SIA before. Overall had poor knowledge (82.9%) and perception (95.2%) towards SIA. There is a significant association between the level of knowledge on SIA with household income (χ
ABSTRACT
Leukemia inhibitory factor (LIF) is a pleiotropic cytokine that is known to play an important role in blastocyst implantation. The putative action of LIF in the regulation of uterine function has been examined using mid-secretory stage monkey endometrial stromal cells cultured on rat-tail collagen type I and treated with recombinant human LIF (rhLIF) or immunoneutralized LIF (in LIF) under serum-free condition. Long-term ovariectomized rhesus monkeys (n=8) underwent simulation of their menstrual cycles with steroid hormones and endometrial tissue samples were collected on cycle day 18; stromal cells were isolated and grown in primary culture on three-dimensional collagen matrix. Significant decline in cellular protein synthesis (P < 0.01) and cell proliferation index (P < 0.05) was observed in cells with increasing doses (0-1000 ng/ml) of rhLIF under serum-free in vitro condition. JAK1 expression in cultured cells increased (P < 0.01) in response to rhLIF as revealed from Western blot and confocal laser scanning microscopic examination, STAT1 and STAT2 expressions were unchanged, while pSTAT3 expression increased (P < 0.01) with increased concentration of rhLIF in culture medium. Autophosphorylation of JAK1 in endometrial stromal cells showed no change with increasing concentration (0.01 to 100 ng/ml) of rhLIF in vitro, but significant (P < 0.05) increase was observed with the time of exposure to rhLIF. Immunoneutralization of LIF or no addition of rhLIF to cultured cells led to significant (P < 0.01) increase in stromal cell proliferation index and significant (P < 0.01) decrease in the level of JAK1 and its autophosphorylation as compared to cells exposed to rhLIF alone. From the present set of experiments we conclude that rhLIF affects the physiological behaviour of monkey mid secretory stage endometrial stromal cells in vitro via the JAK-STAT signaling pathway.