1.Textual study of Baihuasheshecao (Hedyotis diffusa).
Dong-Min JIANG ; Chu-Chu ZHONG ; Pang-Chui SHAW ; Bik-San LAU ; Tai-Wai LAU ; Guang-Hao XU ; Ying ZHANG ; Zhi-Guo MA ; Hui CAO ; Meng-Hua WU
China Journal of Chinese Materia Medica 2025;50(15):4386-4396
Baihuasheshecao(Hedyotis diffusa) is a commonly used traditional Chinese medicine derived from the whole herb of H. diffusa and has been widely utilized in folk medicine. It possesses anti-tumor, antibacterial, and anti-inflammatory properties, making it one of the frequently used herbs in TCM clinical practice. However, Shuixiancao(H. corymbosa) and Xianhuaercao(H. tenelliflora), species of the same genus, are often used as substitutes for Baihuasheshecao. To substantiate the medicinal basis of Baihuasheshecao, this study systematically reviewed classical herbal texts and modern literature, examining its nomenclature, botanical origin, harvesting, processing, properties, meridian tropism, pharmacological effects, and clinical applications. The results indicate that Baihuasheshecao was initially recorded as "Shuixiancao" in Preface to the Indexes to the Great Chinese Botany(Zhi Wu Ming Shi Tu Kao). Based on its morphological characteristics and habitat description, it was identified as H. diffusa in the Rubiaceae family. Subsequent records predominantly refer to it as Baihuasheshecao as its official name. In most regions, Baihuasheshecao is recognized as the authentic medicinal material, distinct from Shuixiancao and Xianhuaercao. Baihuasheshecao is harvested in late summer and early autumn, and the dried whole plant, including its roots, is used medicinally. The standard processing method involves cutting. It is known for its effects in clearing heat, removing toxins, reducing swelling and pain, and promoting diuresis to resolve abscesses. Initially, it was mainly used for treating appendicitis, intestinal abscesses, and venomous snake bites, and later, it became a treatment for cancer. The excavation of its clinical value followed a process in which overseas Chinese introduced the herb from Chinese folk medicine to other countries. After its unique anti-cancer effects were recognized abroad, it was reintroduced to China and gradually became a crucial TCM for cancer treatment. The findings of this study help clarify the historical and contemporary uses of Baihuasheshecao, providing literature support and a scientific basis for its rational development and precise clinical application.
Humans
;
China
;
Drugs, Chinese Herbal/chemistry*
;
Hedyotis/classification*
;
Medicine, Chinese Traditional/history*
2.Comparing the outcome of monitored anaesthesia care and local anaesthesia for carpal tunnel syndrome surgery by neurosurgeons
Goh Chin Hwee ; Lau Bik Liang ; Teong Sook Yee ; Law Wan Chung ; Tan Peter Chee Seong ; Ravindran Vashu ; Liew Donald Ngian San ; Wong Albert Sii Hieng
The Medical Journal of Malaysia 2019;74(6):499-503
Introduction: Carpal tunnel syndrome (CTS) is the
commonest median nerve entrapment neuropathy of the
hand, up to 90% of all nerve compression syndromes. The
disease is often treated with conservative measures or
surgery. The senior author initially intended to treat his own
neurosurgical patients concurrently diagnosed with carpal
tunnel syndrome in 2014, subsequently, he began to pick up
more referrals from the primary healthcare group over the
years. This has led to the setup of a peripheral and spine
clinic to act as a hub of referrals. Objective: Department of
Neurosurgery Sarawak aimed to evaluate the surgical
outcome of carpal tunnel release done over five years.
Methods: The carpal tunnel surgeries were done under local
anaesthesia (LA) given by neurosurgeons (Bupivacaine
0.5% or Lignocaine 2%). Monitored anaesthesia care (MAC)
was later introduced by our hospital neuroanaesthetist in
the beginning of 2018 (Target-controlled infusion propofol
and boluses of fentanyl). We looked into our first 17 cases
and compared these to the two anaesthesia techniques (LA
versus MAC + LA) in terms of patient’s pain score based on
visual analogue scale (VAS).
Results: Result showed MAC provided excellent pain control
during and immediately after the surgery. None experienced
anaesthesia complications. There was no difference in pain
control at post-operation one month. Both techniques had
equal good clinical outcome during patients’ clinic follow
up.
Conclusion: Neurosurgeons provide alternative route for
CTS patients to receive surgical treatment. Being a
designated pain free hospital, anaesthetist collaboration in
carpal tunnel surgery is an added value and improves
patients overall experience and satisfaction.
3.Inhibitory effect of different Dendrobium species on LPS-induced inflammation in macrophages via suppression of MAPK pathways.
Qiang ZENG ; Chun-Hay KO ; Wing-Sum SIU ; Kai-Kai LI ; Chun-Wai WONG ; Xiao-Qiang HAN ; Liu YANG ; Clara Bik-San LAU ; Jiang-Miao HU ; Ping-Chung LEUNG
Chinese Journal of Natural Medicines (English Ed.) 2018;16(7):481-489
Dendrobii Caulis (DC), named 'Shihu' in Chinese, is a precious herb in traditional Chinese medicine. It is widely used to nourish stomach, enhance body fluid production, tonify "Yin" and reduce heat. More than thirty Dendrobium species are used as folk medicine. Some compounds from DC exhibit inhibitory effects on macrophage inflammation. In the present study, we compared the anti-inflammatory effects among eight Dendrobium species. The results provided evidences to support Dendrobium as folk medicine, which exerted its medicinal function partially by its inhibitory effects on inflammation. To investigate the anti-inflammatory effect of Dendrobium species, mouse macrophage cell line RAW264.7 was activated by lipopolysaccharide. The nitric oxide (NO) level was measured using Griess reagent while the pro-inflammatory cytokines were tested by ELISA. The protein expressions of inducible NO synthase (iNOS), cyclooxygenase-2 (COX-2) and mitogen-activated protein kinases (MAPKs) phosphorylation were evaluated by Western blotting analysis. Among the eight Dendrobium species, both water extracts of D. thyrsiflorum B.S.Williams (DTW) and D. chrysotoxum Lindl (DCHW) showed most significant inhibitory effects on NO production in a concentration-dependent manner. DTW also significantly reduced TNF-α, MCP-1, and IL-6 production. Further investigations showed that DTW suppressed iNOS and COX-2 expression as well as ERK and JNK phosphorylation, suggesting that the inhibitory effects of DTW on LPS-induced macrophage inflammation was through the suppression of MAPK pathways. In conclusion, D. thyrsiflorum B.S.Williams was demonstrated to have potential to be used as alternative or adjuvant therapy for inflammation.
Animals
;
Anti-Inflammatory Agents
;
pharmacology
;
Cyclooxygenase 2
;
genetics
;
Cytokines
;
metabolism
;
Dendrobium
;
chemistry
;
Gene Expression Regulation, Enzymologic
;
drug effects
;
Inflammation
;
chemically induced
;
drug therapy
;
Lipopolysaccharides
;
Macrophages
;
drug effects
;
enzymology
;
Mice
;
Mitogen-Activated Protein Kinases
;
antagonists & inhibitors
;
genetics
;
metabolism
;
Nitric Oxide
;
analysis
;
Nitric Oxide Synthase Type II
;
genetics
;
Phosphorylation
;
drug effects
;
Plant Extracts
;
pharmacology
;
RAW 264.7 Cells
;
Signal Transduction
;
drug effects
4.Seropharmacological study on osteogenic effects of post-absorption ingredients of an osteoprotective herbal formula.
Wing-Sum SIU ; Chun-Hay KO ; Hing-Lok WONG ; Si GAO ; Wai-Ting SHUM ; Clara Bik-San LAU ; Lung-Kim HUNG ; Ping-Chung LEUNG
Chinese journal of integrative medicine 2017;23(1):25-32
OBJECTIVETo further investigate the {ptin vitro} effects of an osteoprotective herbal formula "ELP" (Herba Epimedii, Fructus Ligustri Lucidi and Fructus Psoraleae) using seropharmacological approach.
METHODSRats were fed with ELP or its individual component herbs for 2 days. The serum containing the postabsorbed ingredients of the herbal items were collected for cell culture using UMR106 cell, RAW264.7 cell and mesenchymal stem cell (MSC) isolated from the bone marrow of the rats. The effects of the herbal-containing serum on cell toxicity were detected by 3-[4,5-dimethylthiazol-2-yl]-2,5-diphenyltetrazolium bromide assay; bromodeoxyuridine assay was conducted to measure the cell proliferation of UMR106 cell and MSC; cell activity was measured using colorimetric method, and mRNA expression of runt-related transcription factor 2 (Runx2), alkaline phosphatase (ALP) and osteopontin (OPN) of UMR106 and MSC as well as matrix metalloproteinase 9 (MMP-9), tartrate-resistant acid phosphatase (TRAP) and cathepsin K of RAW264.7 were analyzed using real-time reverse-transcription polymerase chain reaction.
RESULTSELP and its component serum exhibited no cytotoxic effects on the cells. The ELP-containing serum increased the proliferation of UMR106 cell and MSC by 25.7% and 14.4 %, respectively and the alkaline phosphatase activity of MSC was increased by 42.6%. On the contrary, it inhibited the RAW264.7 cell differentiation by 29.2 %. ELP serum upregulated the Runx2 expression of UMR and MSC by 1.18 fold and 1.27 fold, respectively. It also upregulated ALP and OPN expression in MSC by 1.69- and 2.12-fold, respectively. On the other hand, ELP serum down-regulated MMP-9 and cathepsin K expression of RAW264.7 cell by 0.46- and 0.36-fold, respectively.
CONCLUSIONSThe serum of the animals fed with ELP contains active ingredients which are effective in promoting osteogenesis and inhibiting osteoclastogenesis.
Absorption, Physiological ; drug effects ; Animals ; Bone and Bones ; drug effects ; pathology ; Cell Differentiation ; drug effects ; Cell Proliferation ; drug effects ; Cell Survival ; drug effects ; Drugs, Chinese Herbal ; pharmacology ; Male ; Mice ; Osteoclasts ; drug effects ; metabolism ; pathology ; Osteogenesis ; drug effects ; Protective Agents ; pharmacology ; RAW 264.7 Cells ; RNA, Messenger ; genetics ; metabolism ; Rats ; Rats, Sprague-Dawley ; Real-Time Polymerase Chain Reaction ; Serum ; metabolism
5.Hypnotic effects of a novel anti-insomnia formula on Drosophila insomnia model.
Chun-Hay KO ; Chi-Man KOON ; Siu-Lung YU ; Kwok-Ying LEE ; Clara Bik-San LAU ; Edwin Ho-Yin CHAN ; Yun-Kwok WING ; Kwok-Pui FUNG ; Ping-Chung LEUNG
Chinese journal of integrative medicine 2016;22(5):335-343
OBJECTIVETo assess the biological effects of the six-herb mixture Anti-Insomia Formula (AIF) extract using caffeine-induced insomnia Drosophila model and short-sleep mutants.
METHODSCaffeineinduced insomnia wild-type Drosophila and short-sleep mutant flies minisleep (mns) and Hyperkinetic(Y) (Hk(Y)) were used to assess the hypnotic effects of the AIF in vivo. The night time activity, the amount of night time sleep and the number of sleep bouts were determined using Drosophila activity monitoring system. Sleep was defined as any period of uninterrupted behavioral immobility (0 count per minute) lasting > 5 min. Night time sleep was calculated by summing up the sleep time in the dark period. Number of sleep bouts was calculated by counting the number of sleep episodes in the dark period.
RESULTSAIF at the dosage of 50 mg/mL, effectively attenuated caffeine-induced wakefulness (P<0.01) in wild-type Canton-S flies as indicated by the reduction of the sleep bouts, night time activities and increase of the amount of night time sleep. AIF also significantly reduced sleeping time of short-sleep Hk(Y) mutant flies (P<0.01). However, AIF did not produce similar effect in mns mutants.
CONCLUSIONAIF might be able to rescue the abnormal condition caused by mutated modulatory subunit of the tetrameric potassium channel, but not rescuing the abnormal nerve firing caused by Shaker gene mutation. This study provides the scientific evidence to support the use of AIF in Chinese medicine for promoting sleep quality in insomnia.
Animals ; Caffeine ; Chromatography, High Pressure Liquid ; Disease Models, Animal ; Drosophila melanogaster ; drug effects ; physiology ; Hypnotics and Sedatives ; pharmacology ; therapeutic use ; Mutation ; genetics ; Potassium Channels ; genetics ; Sleep ; drug effects ; Sleep Initiation and Maintenance Disorders ; drug therapy ; Wakefulness ; drug effects
6.Brain and Spinal Tumour
Chin Hwee Goh ; Yeow Yen Lu ; Bik Liang Lau ; Jacqueline Oy Leng Wong ; Hock Keong Lee ; Donald Ngian San Liew ; Albert Sii Hieng Wong
The Medical Journal of Malaysia 2014;69(6):261-267
This study reviewed the epidemiology of brain and spinal
tumours in Sarawak from January 2009 till December 2012.
The crude incidence of brain tumour in Sarawak was 4.6 per
100,000 population/year with cumulative rate 0.5%.
Meningioma was the most common brain tumour (32.3%)
and followed by astrocytoma (19.4%). Only brain metastases
showed a rising trend and cases were doubled in 4 years.
This accounted for 15.4% and lung carcinoma was the
commonest primary. Others tumour load were consistent.
Primitive neuroectodermal tumour (PNET) and astrocytoma
were common in paediatrics (60%). We encountered more
primary spinal tumour rather than spinal metastases.
Intradural schwannoma was the commonest and frequently
located at thoracic level. The current healthcare system in
Sarawak enables a more consolidate data collection to
reflect accurate brain tumours incidence. This advantage
allows subsequent future survival outcome research and
benchmarking for healthcare resource planning.


Result Analysis
Print
Save
E-mail