Asupan Harian Lactobacillus Casei Strain Shirota (LcS) dengan Minum Yakult Kurangi Infeksi Saluran Pernafasan Atas

AsiaNet 42782

– Ujicoba Yakult di Loughborough University, Inggris –

TOKYO, 7 Januari /Kyodo JBN-AsiaNet/ — Hasil-hasil ujicoba baru-baru ini
yang dilakukan oleh Profesor Michael Gleeson dari Loughborough University,
Inggris, memperlihatkan manfaat kesehatan yang nyata bagi para atlit yang minum
susu fermentasi yang tersedia di pasaran, Yakult, yang mengandung probiotik
unik strain LcS. Atlit ini adalah staf dan mahasiswa universitas tersebut yang
dilibatkan dalam latihan olahraga intensif, seperti bersepeda, triathlon, lari
jarak menengah-jauh atau berenang.

Hasil-hasilnya memastikan bahwa minum Yakult setiap hari efektif
mengurangi terjadinya penyakit flu (misalnya infeksi saluran pernafasan atas,
atau URTIs) pada atlit-atlit ini. Dalam penelitian sebelumnya, telah
diperlihatkan bahwa sebagai suatu kelompok, atlit rentan terhadap infeksi
karena menurunnya sistem kekebalan mereka.

Penelitian ini dijelaskan sepenuhnya dan dimuat online dalam publikasi
ilmiah yang dinilai oleh sejawat, International Journal of Sport Nutrition &
Exercise Metabolism.

[Makalah]
Ujicoba yang hasil-hasilnya tidak diketahui baik oleh peneliti maupun yang
diteliti dilakukan pada 84 atlit. Subyek dibagi menjadi 2 kelompok: 42 menerima
Yakult (6,5 x 10 (9) = menaikkan 10 pangkat sembilan = sel-sel hidup strain
probiotik LcS dalam masing-masing botol) dan 42 menerima plasebo. Setelah
subyek mengkonsumsi minuman yang diberikan dua kali sehari selama 16 pekan,
efek meminum pada URTIs dan parameter kekebalan diperiksa.

Ringkasan hasil-hasilnya sebagai berikut:

1. Terjadinya URTI (umumnya dikenal sebagai penyakit flu)
Perbandingan subyek dari kelompok Yakult yang mengalami gejala URTI selama
satu pekan atau lebih berjumlah 66%, yang jauh lebih rendah daripada
perbandingan dari kelompok plasebo (90%).

2. Efek pada parameter kekebalan
Konsentrasi IgA air liur (1), yang dapat diturunkan dengan olahraga keras
yang lebih lama, lebih tinggi dalam kelompok Yakult daripada dalam kelompok
plasebo.

3. Diskusi
Berdasarkan temuan-temuan ini, para peneliti menyimpulkan bahwa konsumsi
harian minuman susu fermentasi yang mengandung LcS menurunkan terjadinya URTIs
pada atlit yang berolahraga keras lebih lama. Jumlah antibodi sIgA dijaga dalam
kondisi optimal, yang dapat dipertimbangkan sebagai salah satu faktor efek
tersebut.

* Minuman plasebo tidak mengandung LcS. Rasa dan warna baik minuman
plasebo maupun Yakult serupa. Dengan membandingkan efek asupan masing-masing
minuman, kemanjuran Yakult dapat diukur secara ilmiah.

(1) sIgA adalah antibodi yang terdapat dalam air liur dan lendir jalan
nafas, dan berperan penting untuk mencegah infeksi virus.

[Komentar dari Prof. Michael Gleeson dari Loughborough University]
Prof. Michael Gleeson (dari Exercise Biochemistry in the School of Sport,
Exercise and Health Sciences), yang memimpin penelitian itu di Loughborough
University, berkomentar: “Terdapat relatif sedikit bukti untuk efektivitas apa
yang disebut imunostimulan diet dalam populasi atletik tapi studi ini
menunjukkan bahwa produk probiotik dapat membantu mengurangi risiko infeksi.
Olahragawan membenci pemikiran tertular flu karena penyakit ringan bahkan dapat
mengganggu latihan dan kinerja atau bahkan mencegah mereka berkompetisi.”

[Komentar dari Dr. Haruji Sawada, Ph.D., direktur Yakult Central Institute
for Microbiological Research (YCIMR)]
Yakult Honsha Co., Ltd. berpartisipasi dalam penelitian ini sebagai
sponsor dengan menyediakan pendanaan dan sampel uji.
Dr. Haruji Sawada dari YCIMR berkomentar: “Ini merupakan hasil berharga
bahwa konsumsi harian produk kami, Yakult, terbukti memberi kontribusi terhadap
pemeliharaan kondisi baik pada saluran pernapasan atas pada olahragawan yang
sehat. Penelitian ini menghasilkan data penting yang merupakan bukti lebih
lanjut manfaat kekebalan yang terkait dengan minum Yakult.”

SUMBER: Yakult Honsha Co., Ltd.

Kontak:
[Pertanyaan mengenai penelitian ini]
Hannah Baldwin
Head of Public Relations
Marketing and Communications
Loughborough University
www.lboro.ac.uk
H.Baldwin@lboro.ac.uk
Tel: +44-1509-222239
Fax: +44-7971-163522

[Pertanyaan mengenai Yakult]
Isamu Sasaoka
PR Department
Yakult Honsha Co., Ltd.
Tel: +81-3-3574-8920 (bahasa Jepang)
E-mail: strain-shirota@yakult.co.jp (bahasa Jepang dan Inggris)

Takuro Mori, Gary Lo
Sales Dept
HONG KONG YAKULT CO., LTD.
Tel: +852-2342-7111
E-mail: t.mori@yakult.com.hk

Kazunari Maruhashi
Sales Dept.
Yakult (Thailand) Co., Ltd.
Tel: +66-2-619-8008
E-mail: info@yakult.co.th

Juvy Ann N. Aquino
Marketing & Promotion Section
YAKULT PHILIPPINES, INC.
Tel: +63-2-521-1722
E-mail: aquino_juvy@yahoo.com

Kuek Kok Ti
PR & Advertising Dept.
YAKULT (SINGAPORE) PTE., LTD.
Tel: +65-6756-1033
E-mail: yakult@pacific.net.sg

Dinah Woon
PR Dept.
YAKULT AUSTRALIA PTY. LTD.
Tel: +61-3-9238-4700
E-mail: dwoon@yakult.com.au

Mazlyn Mena binti Mustapha
PR & Science Dept.
YAKULT (MALAYSIA) SDN. BHD.
Tel: +60-3-5569-8960
E-mail: customerservice@yakult.com.my

Shefali Sapra
Corporate Communications
YAKULT DANONE INDIA PRIVATE LIMTED
Tel: +91-11-4062-6262
E-mail: shefali.sapra@yakult.co.in

Yasumi Kimura
R&D Dept.
YAKULT S/A IND. E. COM.
Tel: +55-11-5584-4700
E-mail: yasumi.kimura@yakult.com.br

Liu Zhifeng
PR Dept.
Yakult (China) Corporation
Tel: +86-21-50108358, ext.131
E-mail: zhifeng-liu@yakult.com.cn

Chen Baiduan
PR Dept.
YAKULT CO., LTD.
Tel: +886-2-2505-4325
E-mail: pojui.chen@yakult.com.tw

Daily Intake of Lactobacillus Casei Strain Shirota (LcS) by Drinking Yakult Reduces Incidence of Upper Respiratory Tract Infections

TOKYO, Jan. 7 /Kyodo JBN-AsiaNet/ —

– Yakult Trial at Loughborough University, UK –

     Results of a recent trial by Professor Michael Gleeson of Loughborough University, the UK, have demonstrated a clear health benefit for athletes drinking the commercially available fermented milk drink Yakult, which contains the unique probiotic strain LcS. The athletes were staff and students at the university who were involved in regular intensive sports training, such as cycling, triathlon, middle-long distance running or swimming.

     The results confirmed that daily consumption of Yakult was effective in reducing the incidence of common colds (i.e. upper respiratory tract infections, or URTIs) in the athletes. In earlier research, it has been demonstrated that as a group, athletes are susceptible to infections due to a depression of their immune system.

     The study was fully described and published online in the scientific peer-reviewed publication International Journal of Sport Nutrition & Exercise Metabolism.

     [Abstract]
     The double-blind trial was conducted in 84 endurance athletes. Subjects were divided into 2 groups: 42 received Yakult (6.5 x 10 (9) = raising 10 to the 9th power = live cells of the probiotic strain LcS in each bottle) and 42 received a placebo. After the subjects consumed the given drink twice daily for 16 weeks, the drinking effect on the incidence of URTIs and immune parameters was examined.

     The summary of the results is as follows:

     1. Incidence of URTI (generally known as common cold) The proportion of subjects from the Yakult group who experienced one or more weeks with URTI symptoms was 66%, which was significantly lower than that from the placebo group (90%).

     2. Effect on immune parameters
     Saliva IgA concentration (1), which can be lowered by prolonged hard sports, was higher in the Yakult group than in the placebo group.

     3. Discussion
     Based on these findings, the researchers conclude that daily consumption of fermented milk drink containing LcS lowers the incidence of URTIs in athletes who are engaged in prolonged hard sports. The amount of sIgA antibodies was kept in an optimal condition, which can be considered as one of the factors for the effect.

     *The placebo drink did not contain LcS. The taste and color of both the placebo drink and Yakult were similar. By comparing the effects of intake of each drink, the efficacy of Yakult can be scientifically measured.

   (1) sIgA is an antibody contained in saliva and airway mucus, and plays a critical role to prevent virus infection.

     [Comment from Prof. Michael Gleeson of Loughborough University]
     Prof. Michael Gleeson (of Exercise Biochemistry in the School of Sport, Exercise and Health Sciences), who led the study at Loughborough University, commented: “There is relatively little evidence for the effectiveness of so-called dietary immunostimulants in the athletic population but this study suggests that a probiotic product may help to reduce the risk of infection. Athletes hate the thought of picking up colds as even minor ailments can impair their training and performance or even stop them from competing.”

     [Comment from Dr. Haruji Sawada, Ph.D., director of the Yakult Central Institute for Microbiological Research (YCIMR)]
     Yakult Honsha Co., Ltd. participated in this study as sponsor by providing funding and test samples.
     Dr. Haruji Sawada of the YCIMR commented: “It is a valuable result that the daily consumption of our product, Yakult, is proven to contribute to the maintenance of a good state of the upper respiratory tract in healthy sports persons. This study has resulted in important data that are further evidence of immune benefits associated with drinking Yakult.”
     SOURCE: Yakult Honsha Co., Ltd.

     Contact:
     [Inquiry on this study]
     Hannah Baldwin
     Head of Public Relations
     Marketing and Communications
     Loughborough University
     www.lboro.ac.uk
     H.Baldwin@lboro.ac.uk
     Tel: +44-1509-222239
     Fax: +44-7971-163522

     [Inquiry on Yakult]
     Isamu Sasaoka
     PR Department
     Yakult Honsha Co., Ltd.
     Tel: +81-3-3574-8920 (Japanese)
     E-mail: strain-shirota@yakult.co.jp (Japanese and English)

     Takuro Mori, Gary Lo
     Sales Dept
     HONG KONG YAKULT CO., LTD.
     Tel: +852-2342-7111
     E-mail: t.mori@yakult.com.hk

     Kazunari Maruhashi
     Sales Dept.
     Yakult (Thailand) Co., Ltd.
     Tel: +66-2-619-8008
     E-mail: info@yakult.co.th

     Juvy Ann N. Aquino
     Marketing & Promotion Section
     YAKULT PHILIPPINES, INC.
     Tel: +63-2-521-1722
     E-mail: aquino_juvy@yahoo.com

     Kuek Kok Ti
     PR & Advertising Dept.
     YAKULT (SINGAPORE) PTE., LTD.
     Tel: +65-6756-1033
     E-mail: yakult@pacific.net.sg

     Dinah Woon
     PR Dept.
     YAKULT AUSTRALIA PTY. LTD.
     Tel: +61-3-9238-4700
     E-mail: dwoon@yakult.com.au

     Mazlyn Mena binti Mustapha
     PR & Science Dept.
     YAKULT (MALAYSIA) SDN. BHD.
     Tel: +60-3-5569-8960
     E-mail: customerservice@yakult.com.my

     Shefali Sapra
     Corporate Communications
     YAKULT DANONE INDIA PRIVATE LIMITED
     Tel: +91-11-4062-6262
     E-mail: shefali.sapra@yakult.co.in

     Yasumi Kimura
     R&D Dept.
     YAKULT S/A IND. E. COM.
     Tel: +55-11-5584-4700
     E-mail: yasumi.kimura@yakult.com.br

     Liu Zhifeng
     PR Dept.
     Yakult (China) Corporation
     Tel: +86-21-50108358, ext.131
     E-mail: zhifeng-liu@yakult.com.cn

     Chen Baiduan
     PR Dept.
     YAKULT CO., LTD.
     Tel: +886-2-2505-4325
     E-mail: pojui.chen@yakult.com.tw